Link between competing phases in cuprates leads to new theory


A team of scientists studying the parent compound of a cuprate (copper-oxide) superconductor has discovered a link between two different states, or phases, of that matter – and written a mathematical theory to describe the…

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Light propagation controlled in photonic chips — major breakthrough in telecommunications field


Researchers at Columbia Engineering School have built optical nanostructures that enable them to engineer the index of refraction and fully control light dispersion. They have shown that it is possible for light (electromagnetic waves) to…

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